Bottle cap



FIG. 1 is a top perspective view;

FIG. 2 is a bottom perspective view;

FIG. 3 is a front elevation view; the rear elevation view being a mirror image thereof;

FIG. 4 is a left side elevation view, the right side elevation view being a mirror image thereof;

FIG. 5 is a top plan view; and,

FIG. 6 is a bottom plan view.

The broken line showing of internal threads in FIGS. 2 and 6 is included for the purpose of illustrating environmental structure and forms no part of the claimed design. 

The ornamental design for a bottle cap, as shown and described. 